Whirlpool Electric Built-In Oven Manuale di Servizio

TECHNICAL EDUCATIONJOB AID 4317410KAC-4627˝ & 30˝ ELECTRIC BUILT-IN MICROWAVE/OVEN COMBINATIONMODELS: KEMS378S & KEMS308S

1-6Model Number KEMS378SBL, BT, SS, WH KEMS308SBL, BT,SS,WHInterior Lower/Main Oven Cleaning System Self Cleaning Self Cleaning Main Oven

2-1INSTALLATION INFORMATIONINSTALLATION REQUIREMENTSTOOLS AND PARTSGather the required tools and parts before start-ing installation. Read and follow

2-2Cabinet Dimensions27˝ (68.6 cm) and 30˝ (76.2 cm) Ovens 27˝ (68.6 cm) modelsA. 27˝ (68.6 cm) min. cabinet widthB. 1˝ (2.5 cm) top of cutout to bott

2-3Models rated from 7.3 to 9.6 kW at 240 volts (5.5 to 7.2 kW at 208 volts) require a separate 40-amp circuit. Models rated at 7.2 kW and below at 24

2-4INSTALLATION INSTRUCTIONSPREPARE BUILT-IN MICROWAVE/OVEN COMBINATION1. Decide on the final location for the oven. Locate existing wiring to avoid

2-5MAKE ELECTRICAL CONNECTIONElectrical Shock HazardDisconnect power before servicing.Use 8 gauge solid copper wire.Electrically ground oven.Failure t

2-6INSTALL OVENExcessive Weight HazardUse two or more people to move and install oven.Failure to do so can result in back or other injury.WARNING1.

2-74. Securely fasten oven to cabinet using the #8-14 x 1˝ screws (2 for single oven, 4 for double oven) provided. Insert the screws through holes

2-8Check Operation of Microwave Oven1. Fill a microwave-safe container with 1 cup (250 mL) of water and place container inside microwave oven. Close

3-1PRODUCT OPERATION% OZFC LBSPOWERTIMERMAXIMUM TIME REMAINING% OZFC LBSPOWERTIMERMAXIMUM TIME REMAININGCONTROL LOCKThe Control Lock shuts down the co

- ii -WHIRLPOOL CORPORATION assumes no responsibility for any repairs made on our products by anyone other than authorized In-Home Service Professiona

3-2SABBATH MODEThe Sabbath Mode sets the oven to remain on in a bake setting until turned off. A timed Sab-bath Mode can also be set to keep the oven

3-3The temperature probe accurately measures the internal temperature of meat, poultry and casseroles with liquid and should be used in determining

3-4— NOTES —

4-1COMPONENT LOCATIONSUpper Oven ComponentsThis section instructs you on how to service each component inside the KitchenAid 27˝ & 30˝ Electric Bu

4-2REMOVING THE USER INTERFACE AND THE OVEN & MICROWAVE CONTROL BOARD ASSEMBLIESWARNING1. Unplug oven or disconnect power.2. Open the microwave

4-3REMOVING THE HUMIDITY SENSOR AND THE CAVITY THERMOSTATWARNING1. Unplug oven or disconnect power.2. Open the microwave oven door, remove the two

4-4REMOVING THE CONTROL POWER AND THE MICROWAVE LIGHT TRANSFORMERSWARNINGElectrical Shock HazardDisconnect power before servicing.Replace all parts an

4-5REMOVING THE CONVECTION THERMOACTUATOR AND THE WIDE INTERFACE BOARDWARNINGElectrical Shock HazardDisconnect power before servicing.Replace all part

4-6REMOVING THE MONITOR FUSE AND THE MICROWAVE APPLIANCE MANAGERWARNINGElectrical Shock HazardDisconnect power before servicing.Replace all parts and

4-7REMOVING THE MICROWAVE DOOR INTERLOCK SWITCHES AND THE CAVITY LIGHTWARNINGElectrical Shock HazardDisconnect power before servicing.Replace all part

- iii -TABLE OF CONTENTSPageGENERAL ...

4-86. To remove the primary or monitor in-terlock switch: a) Place the blade of a flat-blade screw-driver between the switch body and the holder. Twi

4-9REMOVING THE MAGNETRON THERMOSTAT AND THE MAGNETRONWARNINGElectrical Shock HazardDisconnect power before servicing.Replace all parts and panels bef

4-10d) Remove the eight screws from the top right side cover and remove the cover.e) Remove the nine screws from the right microwave side

4-11REMOVING THE MAIN L1 FILTER, MAIN L2 FILTER, AND GRILL THERMOSTATWARNINGElectrical Shock HazardDisconnect power before servicing.Replace all parts

4-12c) Disconnect the wires from the main L1 filter board as follows: White at P31 (to 3-pin plug) Black at P32 Brown at P33 White at P34d) Remov

4-13REMOVING THE MAGNETRON FAN MOTOR & THE INVERTERWARNINGElectrical Shock HazardDisconnect power before servicing.Replace all parts and panels be

4-147. To remove the inverter:a) Remove the two top screws from the outer convection cover at the rear of the oven.c) Remove the magnetron fan moto

4-15c) IMPORTANT: Touch a screwdriver shaft to the two filament connectors and chassis ground.d) Disconnect the two filament wires from the ma

4-16REMOVING THE CONVECTION THERMISTOR AND GRILL ELEMENTWARNINGElectrical Shock HazardDisconnect power before servicing.Replace all parts and panels b

4-17c) Open the microwave oven door.d) Twist the front grill element support 90° in either direction and remove it from the cavity slot.e) Lower t

- iv -COMPONENT TESTING ... 5-1UPPER OVEN COMPON

4-18REMOVING THE LOWER OVEN APPLIANCE MANAGERWARNINGElectrical Shock HazardDisconnect power before servicing.Replace all parts and panels before op

4-197. Disconnect the wire connectors from the lower oven appliance manager board pins. The wire connector colors are as follows:T1 = PK/WH, PKT2 = 2

4-20REMOVING THE LINE FUSE HOLDER & LOWER OVEN LIGHT TRANSFORMERWARNINGElectrical Shock HazardDisconnect power before servicing.Replace all parts

4-21REMOVING THE AC TERMINAL BLOCKWARNINGElectrical Shock HazardDisconnect power before servicing.Replace all parts and panels before operating.Fai

4-22REMOVING THE CONVECTION THERMOSTAT, RING ELEMENT, AND FAN MOTOR WARNINGElectrical Shock HazardDisconnect power before servicing.Replace all parts

4-237. To remove the convection ring element:a) Disconnect the two wires from the ring element terminals.b) Remove the six screws, (including the c

4-24REMOVING THE TURNTABLE MOTORWARNINGElectrical Shock HazardDisconnect power before servicing.Replace all parts and panels before operating.Failu

4-257. Unhook and remove the AC wiring conduit connector from the back of the upper left side cover.8. Remove the five screws from the upper le

4-2614. Lower the motor as far as possible, pull the turntable coupler off the motor shaft and remove the motor from the oven. 15. Remove the cardbo

4-27Halogen Lights Blower MotorDoor Latch AssemblyLower Temperature Sensor(On Oven Liner)Halogen Light BlowerMeat ProbeDoor GasketOven Door GlassIN/O

1-1GENERALOVEN SAFETYYour safety and the safety of others are very important.We have provided many important safety messages in this manual and on the

4-28REMOVING THE DOOR LATCH ASSEMBLYWARNINGElectrical Shock HazardDisconnect power before servicing.Replace all parts and panels before operating.F

4-299. To remove the latch motor, remove the two motor screws from the bottom of the assembly.10. To remove the door or latch switch, remove t

4-30REMOVING THE BROIL ELEMENT AND THE OVEN TEMPERATURE SENSORWARNING1. Unplug oven or disconnect power.2. Open the lower oven door.Electrical Shoc

4-314. To remove the oven temperature sen-sor:a) Remove the screws from the sensor bracket.e) Disconnect the sensor wire connector from the wi

4-32REMOVING THE CONVECTION RING ELEMENT AND THE CONVECTION FAN MOTOR4. To remove the convection ring element:a) Remove the two screws from the ele-

4-335. To remove the convection fan motor:a) Remove the 10mm hex nut from the convection fan blade (left-hand rotation) and remove the blade from

4-34REMOVING A HALOGEN LIGHT ASSEMBLY AND THE MEAT PROBE JACKWARNING1. Unplug oven or disconnect power.2. Open the lower oven door.Electrical Shock

4-354. To remove the meat probe jack:a) Remove the nut from the meat probe jack. Meat Probe Jack Nutb) Remove the oven from its mounting loca

4-36REMOVING THE BLOWER ASSEMBLY, BLOWER SPEED RESISTOR, AND OVEN SHUTDOWN THERMAL CUTOFFWARNING4. Remove the ten screws from the upper rear cove

4-377. To remove the oven shutdown thermal cutoff (TCO):a) Disconnect the two red wires from the TCO terminals.b) Remove the two mounting screws an

1-2PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICING TO AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGYa. Do not operate or allow the oven

4-38REMOVING THE HIDDEN BAKE ELEMENTWARNINGElectrical Shock HazardDisconnect power before servicing.Replace all parts and panels before operating.F

4-39NOTE: When you remove the hidden bake element, press down on the front edge of the panel that is below the element so that it does not inter

4-40REMOVING THE OVEN DOOR GLASS AND HANDLE1. Open the lower oven door.2. Raise the two door hinge tabs to the “un-locked” position.3. Close the ov

4-41c) Remove the four door handle bracket screws and remove the brackets and handle from the door.d) Slide the bottom edge of the outer oven door g

4-42REMOVING THE OVEN DOOR GASKET1. Remove the lower oven door (see the pro-cedure on page 4-40).2. Remove the screw from the door gasket retainer a

5-1COMPONENT TESTINGElectrical Shock HazardDisconnect power before servicing.Replace all parts and panels before operating.Failure to do so can result

5-2Refer to page 4-4 for the procedure for access-ing the microwave light transformer.1. Unplug oven or disconnect power.2. Disconnect one of the wi

5-3Electrical Shock HazardDisconnect power before servicing.Replace all parts and panels before operating.Failure to do so can result in death or elec

5-4Electrical Shock HazardDisconnect power before servicing.Replace all parts and panels before operating.Failure to do so can result in death or elec

5-5Electrical Shock HazardDisconnect power before servicing.Replace all parts and panels before operating.Failure to do so can result in death or elec

1-3MODEL NUMBER K EM S 30 8 S SS 0PRODUCT GROUP K = KITCHENAID PRODUCT IDENTIFICATION EB = ELECTRIC BUILT-IN OVEN EH = ELECT

5-6Electrical Shock HazardDisconnect power before servicing.Replace all parts and panels before operating.Failure to do so can result in death or elec

5-7Electrical Shock HazardDisconnect power before servicing.Replace all parts and panels before operating.Failure to do so can result in death or elec

5-8Electrical Shock HazardDisconnect power before servicing.Replace all parts and panels before operating.Failure to do so can result in death or elec

5-9Electrical Shock HazardDisconnect power before servicing.Replace all parts and panels before operating.Failure to do so can result in death or elec

5-10LOWER OVEN COMPONENTSElectrical Shock HazardDisconnect power before servicing.Replace all parts and panels before operating.Failure to do so can r

5-11Electrical Shock HazardDisconnect power before servicing.Replace all parts and panels before operating.Failure to do so can result in death or ele

5-12Electrical Shock HazardDisconnect power before servicing.Replace all parts and panels before operating.Failure to do so can result in death or ele

5-13Electrical Shock HazardDisconnect power before servicing.Replace all parts and panels before operating.Failure to do so can result in death or ele

5-14Electrical Shock HazardDisconnect power before servicing.Replace all parts and panels before operating.Failure to do so can result in death or ele

5-15Electrical Shock HazardDisconnect power before servicing.Replace all parts and panels before operating.Failure to do so can result in death or ele

1-4MODEL & SERIAL NUMBER LABELAND TECH SHEET LOCATIONSThe Model/Serial Number label and Tech Sheet locations are shown below.Model & Serial Nu

5-16— NOTES —

6-1DIAGNOSTICS & TROUBLESHOOTINGIMPORTANTElectrostatic Discharge (ESD) Sensitive ElectronicsESD problems are present everywhere.

6-2PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICING TO AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGYa. Do not operate or allow the oven

6-3Electrical Shock HazardDisconnect power before servicing.Replace all parts and panels before operating.Failure to do so can result in death or elec

6-4FAILURE(Leftmost2 ClockDigits)ERROR(Rightmost2 ClockDigits)MESSAGE/DESCRIPTIONSUGGESTED CORRECTIVE ACTION PROCEDUREH. Replace all parts and panels

6-5FAILURE(Leftmost2 ClockDigits)ERROR(Rightmost2 ClockDigits)MESSAGE/DESCRIPTIONSUGGESTED CORRECTIVE ACTION PROCEDURETO VERIFY DOOR LATCH SWITCH/MOTO

6-6FAILURE(Leftmost2 ClockDigits)ERROR(Rightmost2 ClockDigits)MESSAGE/DESCRIPTIONSUGGESTED CORRECTIVE ACTION PROCEDUREF6E1E2COOK oven OVER TEMPERATURE

6-7FAHRENHEIT (° F) TO CELSIUS (° C) CONVERSIONThe temperature is preset in Fahrenheit, how-ever it can be changed to Celsius.To

6-8MW OVEN POWER OUTPUT TESTThe power output of the magnetron can be mea-sured by the following tap water temperature rise test.NOTES:Be sure oven cav

7-1WIRING DIAGRAM & STRIP CIRCUITSWIRING DIAGRAML1 N L2BK W RBKWRLINE 20AFUSEBKWRWMAIN FILTER L11030MAIN FILTER L21035P32P33P31 P341234BRWWRY/G18B

1-5SPECIFICATIONSModel Number KEMS378SBL, BT, SS, WH KEMS308SBL, BT,SS,WHModel Description MW/BI Combo MW/BI ComboSize - Configuration27˝ 30˝Feature Le

7-2STRIP CIRCUITSThe following individual circuits are for use in diagnosis, and are shown in the ON position. Do not continue with the diagnosis of t

7-3BREAD PROOF PREHEAT B - BREAD PROOF PREHEAT A -BREAD PROOF SSOVENSHUTDOWNTHERMALCUTOFF(NON-RESETTABLE)(105°C) (221°F)BLOWERSPEED RESISTORT4-3P8-1BK

7-4CLEANMWO FULL POWER - MWO VARIABLE POWER - MWO STEAMOVENSHUTDOWNTHERMALCUTOFF(NON-RESETTABLE)(105°C) (221°F)OUT BROIL 1450WN L2W RRORGYWL1BKNBLOWER

7-5MWO CRISPL1BKL2RRBKBKLINE 20AFUSELINE FILTER L1P32P33BKBRBRBRMONITOR20A FUSEMW APPLIANCEMANAGERP1-1P2-6P2-4P2-2P2-1P2-3P2-5P1-2P3-1HALOGEN LIGHTMMC

7-6— NOTES —

IN THE UNITED STATES:FOR PRODUCT SPECIFICATIONS AND WARRANTY INFORMATION CALL:FOR TECHNICAL ASSISTANCE WHILE AT THE CUSTOMER’S HOME CALL:THE TECHNICAL